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Altera_Forum
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16 years ago

How to read and write value in two different systems?

Dear everyone, I am now working on a multicore system. cpu_0 runs uclinux, cpu_1 runs a piece of program, the base address of led_red( pio ) in the SOPCBuilder is 0x00400000, the base ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

The ultimate purpose of doing so is to commucnicate between the uclinux and program.

The user land process may be a destination, and the hardware device may be an transimittion, not the purpose.

Which means I only wanna create a communication byte between them, also to prevent accessing simultaneously.

Also , I wanna create a share memory between them. But that may be the next step.